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1. Surface tension is a force that holds the surface of a fluid together. It results from the cohesiveness of the liquid molecules. Explain what makes water molecules cohesive.
2. What characteristic(s) does a substance need to possess in order to be hydrophilic?
3. Explain why a column of water moved up the inside of the glass capillary tube in this exercise.
4. Explain why water behaved differently in the plastic capillary tube compared to the glass tube.
5.
a. Hand draw a line graph (no computer graphics!!) of the class average data that was collected in section III.B of today's lab. The x-axis should be the number of drops of detergent and the y-axis should be the distance between the top of the water in the test tube and the top of the water in the capillary tube. Your graph must be neatly drawn and your data points clearly marked with an appropriate symbol (a large dot, square, triangle, etc.). Use a straightedge to connect the data points together. Clearly label the axes of your graph and give the graph an appropriate title. Attach it to this sheet when turning in your assignment.
b. Explain why the detergent had the effect it did on the height of the water column.
Discuss three examples of how humans utilize microbes and their products today. Develop one argument in support of or refuting the following statement: "Viruses are living microorganisms."
define which glucose is transported across a cell membrane. I could also really use help with finding online references on similar topics.
Apply the principle of exponential growth to the cells in a multicellular organism where a cancer arises in a lymph node. Assume the tumor cells double every 18 hours and none die. How many days will it take to become a palpable mass (approximatel..
Explain: (a) why we use scientific names written in Latin (and sometimes Greek) and (b) the importance of binomial nomenclature in naming organisms. Give examples of three scientific names (in correct binomial format) of common organisms. Check th..
write 700- to 1500-word paper describing how a needs assessment could provide relevant feedback to upper management.
Transcribe and translate EACH of the three following DNA gene sequences. Turn these in using the graphic organizer. What is the significance of the first and last codons of an mRNA transcript? What meaning do these mRNA codons have for protein synthe..
What is primary crossing? What is the purpose of primary crossing in sorting mutants with similar phenotypes into complementation groups.
The most important result of mitosis is the ___. Which of the following techniques would be useful incontrolling cancer once it has formed an abnormal growth?
How is a mitochodrion adapted to its fuction? State at least three adaptations
1. A 40 year old bird handler was admitted to the hospital with soreness over his upper jaw, progressive vision loss, and bladder dysfunction. He had been well 2 months earlier. Within weeks he lost reflexes in his lower extremities and subsequently ..
in humans , red green colorblindness is a sex linke drecessive condition. show a cross between a colorblind manand a woman with normal vision homozygous normal . what are the possible phenotypes of the children?
Microbes were first formally observed in themid-1600’s, but the cell theory was not enunciated until1839. Write a paragraph explaining why microbiology did not becomea formally recognized science until Pasteur’s andKoch’s time.
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